136 HORTICULTURE [Bot. Absts., Vol. IV, 



thrive in shade indifferently. Various shady locations such as under surface-rooting trees, 

 deep-rooting trees and dense-shading trees, and close to over-hanging eaves of houses are 

 discussed. — L. A. Minns. 



860. Miyoshi, Man abu. Uber der Erhaltung einer neuen wildwachsenden hangenden 

 Varietat des Kastanienbaumes als Naturdenkmal [Concerning a new wild chestnut with weep- 

 ing branches and its preservation as a Natural Monument]. Bot. Mag. Tokyo 33: 185-188. 

 1 fig. Sept., 1919.— See Bot. Absts. 4, Entry 452. 



861. Moxdixo, Alfonsino. Richerche anatomische e morphologiche sulla var. "tuber- 

 osa" Asch. dell "Arrhenatherum elatius" M. K. nuovamente trovata inPiemonte. [Anatomical 

 and morphological research of var. tuberosa Asch., of Arrhenatherum elatius, M. K. recently 

 found in Piedmont.] Atti. R. Accad. Sci. Torino 54:782-794. 1919.— See Bot. Absts. 4, 

 Entry 988. 



862. Nash, George V. Crataegus spathulata. Addisonia 4: 47. PI. 144 (colored). 

 1919. — Includes description, with notes on distribution, habitat, time of flowering, etc. This 

 species of hawthorn is native of the southeastern United States. It was discovered by 

 Michaux in South Carolina and characterized by him in his classic work. This shrub was 

 early introduced into English and French gardens. — T. J. Fitzpatrick. 



863. Nash, George V. Hamamelis virginiana. Addisonia 4: 43, 44. PI. 142 {colored). 

 1919. — Describes with notes this late fall flowering shrub or small tree, native of eastern 

 North America. — T. J. Fitzpatrick. 



864. Nash, George V. Orontium aquaticum. Addisonia 4: 51, 52. PI. 146 (colored). 

 1919. — A species of a monotypic genus, ranging from Massachusetts to Florida and Louisiana, 

 inhabiting swamps, ponds, and rivers, usually not distant from the seashore. — T. J. 

 Fitzpatrick. 



865. Nash, George V. Paphiopedilum rothschildianum. Addisonia 4:41,42. PI. 141 

 (colored). 1919.— Gives a full description with comment of this showy perennial orchid 

 formerly included in the genus Cypripedium. It is a native of the humid forests of Borneo 

 Sumatra, and New Guinea and was introduced into cultivation in 1887. Short statements 

 concerning related genera are given. — T. J. Fitzpatrick. 



S66. Nash, George V. Viburnum lantana. Addisonia 4:55, 56. PI. 148 (colored). 

 1919. — Gives a description of the species with comment and contrast of related species. 

 This ornamental shrub is a native of Europe, the Caucasus, and northern Africa. It re- 

 sponds readily to cultivation as do most of the species of the genus, giving us many of our 

 very attractive ornamental shrubs. — T. J. Fitzpatrick. 



867. Pack, C. L. Central Park trees starving to death. Amer. Forest. 25:1391-1400. 

 30 fig. 1919.— See Bot. Absts 4, Entry 455. 



S68. Pammel, L. H. Effect of winter on shrubs at Ames, Iowa. Rep. Iowa State Hortic. 

 Soc. 53: 39^41. 1918. — Tho author gives a list of plants injured by cold during the winter of 

 1917-1918. Mention is made of the injury to Concord grape, in some places it killed to the 

 ground. There was also serious injury to osage orange Toxylon pomiferum, Ldriodendron 

 Tulipifera, and Sambucus racemosa. Slight injury was noted to Philadelphus coronarius 

 and Ulmu campestris. Many conifers like Abies concolor, A. balsamea and Thuja occident- 

 I much in some placi 3. Plants in a soil saturated with moisture are less injured 

 than when the soil is comparatively dry. Covering of snow helps to protect plants. Such 

 plantf ■ /,' I and Sambiicus roc frequently suffer a1 Amos, although per- 



fectly hardy ii . with a r covering of snow. — L. II. Pammel. 



